loosen (your) tongue

if alcohol loosens your tongue, it makes you talk a lot without thinking carefully about what you are saying.

Her tongue loosened by drink, she began to say things that she would later regret.

• up the spout
• up to its old tricks
• up to neck in
• up to neck in something
• up to no good
• up to old tricks
• up to par
• up to scratch
• up to snuff
• up to speed
• up to the hilt
• up to the mark
• up-to-the-minute
• up to the minute
• up to your neck in
• up to your neck in something
• up to your old tricks
• up your alley
• up your sleeve
• use a sledgehammer to crack a nut
• used to
• used to doing something
• used to do something
• used to something
• Use loaf.